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2 years ago

Write an expression for the length 7mm and it’s width 62mm for the rectangle

Mathematics

1 answer:

Veronika [31]2 years ago

3 0

First statement:
l = 7 + w

Second statement:
21 + 2w > 62

The first statement is the answer to A

B. 2(7 + w) + 2w > 62
14 + 2w + 2w > 62
14 + 4w > 62

C. Subtract 14 from both sides
4w > 48
Divide both sides by 4
w > 12

The width of the rectangle must be strictly 12mm

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3 years ago

A dealer currently makes a profit of x% of his cost when he sells goods. If the dealer could get his goods for 8% less while kee

CaHeK987 [17]

Answer:

15%

Step-by-step explanation:

Let

Selling price = SP

Cost price = CP

If CP = 100

Profit = selling price - cost price

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If CP = 92

SP = 92 (1+ {x+10}/100)

Equate both SP

100 (1 + x/100) = 92 (1+ {x+10}/100)

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3 years ago

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myrzilka [38]

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3 years ago

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morpeh [17]

A
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3 years ago

Write yes if the given set of lengths are side lengths of a right triangle. Otherwise write No

Amiraneli [1.4K]

Answer:

a) Yes

b) No

c) Yes

d) No

e) No

Step-by-step explanation:

Right triangle:

The square of the larger side is equals to the sum of the squares of the smaller sides.

a. 6, 8, 10

$6^2 + 8^2 = 36 + 64 = 100 = 10^2$

The answer is yes.

b. 8, 15, 16

$8^2 + 15^2 = 64 + 225 = 289 \neq 16^2 = 256$

So no.

c. 10, 24, 26

$10^2 + 24^2 = 100 + 576 = 676 = 26^2$

So yes

d. 20, 21, 28

$20^2 + 21^2 = 400 + 441 = 841 \neq 28^2 = 784$

So no.

e. 9, 35, 41

$9^2 + 35^2 = 81 + 1225 = 1306 \neq 41^2 = 1681$

7 0

2 years ago